Tidal Seismicity in the Moon and Implications for the Rocky Interior of Europa
The Planetary Science JournalSeismology is a powerful tool for probing the deep interiors of planetary bodies. Just as deep moonquakes triggered by Earth’s tides occur on the Moon, as observed by the Apollo seismometers, icy moons of the giant planets may also have seismically ...
Laurent Pou +5 more
doaj +1 more source
On the Divergent Evolution of Io and Europa as Primordial Ocean Worlds
The Astrophysical JournalThe Galilean moons exhibit a decrease in bulk density with distance from Jupiter, which may reflect differences in evolutionary paths and water loss. Early in its history, Jupiter was more luminous, which may have driven substantial atmospheric escape on
Yannis Bennacer +2 more
doaj +1 more source
Juno spacecraft gravity measurements provide evidence for normal modes of Jupiter. [PDF]
Nat Commun, 2022 Durante D +14 more
europepmc +1 more source
Spectroscopic Mapping of Callisto with HST/STIS and Implications for its Surface Composition
The Planetary Science JournalWe present global, spatially resolved ultraviolet–visible spectra of Callisto obtained with the Hubble Space Telescope/Space Telescope Imaging Spectrograph and explore possible compositions of Callisto’s surface material.
M. Ryleigh Davis +3 more
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A comprehensive investigation of the Galilean moon, Io, by tracing mass and energy flows. [PDF]
Exp Astron (Dordr), 2022 Thomas N.
europepmc +1 more source
A Direct Simulation Monte Carlo–Driven Photochemical Model of Callisto’s Ionosphere
The Planetary Science JournalHere we present a photochemical model of Callisto’s ionosphere with inputs supplied by a direct simulation Monte Carlo model of its neutral atmosphere. We compare a model that considers interactions with photons as the sole external ionization mechanism ...
Shane R. Carberry Mogan +3 more
doaj +1 more source
Water-Group Pickup Ions From Europa-Genic Neutrals Orbiting Jupiter. [PDF]
Geophys Res Lett, 2022 Szalay JR +13 more
europepmc +1 more source
The Planetary Science JournalWe publish the first near-infrared spectra of grain particulate mixtures of water ice, epsomite, and halite at cryogenic temperatures. Furthermore, we perform a quantitative assessment of the ability of both intimately and linearly mixed models to ...
Jodi R. Berdis +3 more
doaj +1 more source
On the Origin and Dynamical Evolution of Jupiter’s Moon Amalthea
The Astrophysical JournalInterior to the orbits of Jupiter’s iconic Galilean moons are four small satellites with individual mean radii R ≲ 84 km. Multiple lines of evidence suggest that these bodies formed at a more distant location in Jupiter’s circumplanetary disk before ...
Ian R. Brunton, Konstantin Batygin
doaj +1 more source
Crystallography relevant to Mars and Galilean icy moons: crystal behavior of kieserite-type monohydrate sulfates at extraterrestrial conditions down to 15 K. [PDF]
IUCrJ, 2022 Wildner M +5 more
europepmc +1 more source